Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 33 - Sealing or packing boreholes or wells
Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
10/2012
10/26/2012WO2012097071A3 Oilfield apparatus and method comprising swellable elastomers
10/26/2012WO2012094488A3 Shape memory material packer for subterranean use
10/26/2012WO2012091840A4 Isolation of zones for fracturing using removable plugs
10/26/2012WO2012083180A3 "packer assembly with sealing bodies"
10/26/2012WO2012079768A3 Equipment and methods for determining waiting-on-cement time in a subterrenean well
10/26/2012CA2833405A1 Tubular actuating system and method
10/25/2012US20120267123 Expandable packer
10/25/2012US20120267108 Use of methylhydroxyethyl cellulose as cement additive
10/25/2012US20120267107 Foamed Spacer Fluids Containing Cement Kiln Dust and Methods of Use
10/25/2012US20120267106 Pumpable Geopolymers Comprising A Setting Accelerator
10/25/2012US20120267098 Process of sealing a breakthrough created during the production of hydrocarbons in a subterranean formation
10/25/2012US20120267094 Apparatus and Method for Recovering Fluids from a Well and/or Injecting Fluids into a Well
10/24/2012EP2514914A1 Method of installing wellhead platform using an offshore unit
10/24/2012EP2513417A1 Downhole sub with hydraulically actuable sleeve valve
10/24/2012EP2513416A2 Sealing method and apparatus
10/24/2012EP2513415A2 Retrieval method for opposed slip type packers
10/24/2012EP2513414A1 Method and device for closing a well
10/24/2012CN202500540U Three-channel injection-production well entrance apparatus
10/24/2012CN202500525U An anti-collapse apparatus for rock holes by grouting and congealing walls of holes
10/24/2012CN202500524U Hydraulic-pressure removable packer
10/24/2012CN202500523U Anti-scouring structure of adjustable plug
10/24/2012CN202500522U Hydraulic setting tool
10/24/2012CN202500521U High-pressure large flow water inrush borehole safety system
10/24/2012CN202500520U Replaceable suspension-type clip sealing device
10/24/2012CN202500519U Gas extraction drilling hole sealing apparatus
10/24/2012CN202500518U Well drilling and completion integrated oil casing head
10/24/2012CN202500517U Polish rod sealer convenient for withdrawing sealing element
10/24/2012CN202500516U Secondary pressure-relief outburst-preventing device and engineering machine
10/24/2012CN202500494U Jet bit for carrying out grouting consolidation on aggregate filled in formation cavity
10/24/2012CN102747982A Hydraulic mechanical integrated bridge plug
10/24/2012CN102747981A Self-filling type pumping assembly
10/24/2012CN102747980A Expansion type multi-grade pressurized rapid hole sealing technology
10/24/2012CN102747979A Bidirectional self-locking type external casing packer
10/24/2012CN102747978A Wellhead centering device
10/24/2012CN102747967A Multi-stage segmented release water exploration pipe column and method for casing well completion multi-stage fractured horizontal well
10/24/2012CN102071962B Method for sealing downward hole
10/24/2012CN101775974B Method for exploiting coal bed methane (CBM) by water transportation and pressure relief in butted well
10/24/2012CN101718190B Completed well body structure with temporary plugging function screen pipe and well completion method for suspending screen pipe at tail pipe
10/24/2012CN101718189B Completed well body structure with temporary plugging function screen pipe and well completion method for injecting cement on top
10/23/2012US8291989 Retrieval method for opposed slip type packers
10/23/2012US8291988 Tubular actuator, system and method
10/23/2012US8291987 High capacity running tool and method of setting a packoff seal
10/23/2012US8291984 Control device for an inflatable tool for the treatment of a well or a pipeline
10/23/2012US8291980 Tubular valving system and method
10/23/2012US8291975 Use of micro-electro-mechanical systems (MEMS) in well treatments
10/21/2012CA2770763A1 Process of sealing a breakthrough created during the production of hydrocarbons in a subterranean formation
10/18/2012WO2012142600A1 Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same
10/18/2012WO2012142274A2 Systems and methods for capping a subsea well
10/18/2012WO2012142112A1 Sliding sleeve valve stage cementing tool and method
10/18/2012WO2012140178A1 Capping stack and method for controlling a wellbore
10/18/2012WO2012140076A2 Method and device for encasing a borehole
10/18/2012WO2012059469A3 Expandable packer
10/18/2012US20120261140 Devices for reducing ball impact into ball seats and methods of reducing ball impact into ball seats
10/18/2012US20120261134 Wellhead wicker repair tool
10/18/2012US20120261127 Sliding stage cementing tool and method
10/18/2012US20120261115 Ball seat having ball support member
10/18/2012DE102011001987A1 Verfahren und Vorrichtung zum Einschließen eines Bohrlochs Method and apparatus for enclosing a borehole
10/18/2012CA2833174A1 Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same
10/18/2012CA2832071A1 Sliding sleeve valve stage cementing tool and method
10/17/2012EP2511471A1 Controlling a tool
10/17/2012EP2510185A1 Injection module, method and use for lateral insertion and bending of a coiled tubing via a side opening in a well
10/17/2012CN202493239U Blowout preventer
10/17/2012CN202493238U Temperature-controlled anti-overflow filtering device
10/17/2012CN202493237U One-stage single-hanging device and one-stage double-hanging device
10/17/2012CN202493236U Separate type double-barreled hanger assembly
10/17/2012CN202493235U Detachable packing gland
10/17/2012CN202493234U An underground pipeline gas production wellhead device
10/17/2012CN202493222U Quick pipe flushing connector
10/17/2012CN102741497A External casing packer
10/17/2012CN102733844A Hole sealing structure and hole sealing method as well as expansive cement for sealing hole
10/17/2012CN102733787A Plug-in coiled tubing induced-spraying device
10/17/2012CN102733777A Hydraulic setting/unsetting high-pressure packer
10/17/2012CN102733776A Fishable tubing plug
10/17/2012CN102733775A C-shaped plate for lifting well mouth
10/17/2012CN102733774A Broken pipe blocker
10/17/2012CN102733773A Lead impression wear bushing
10/17/2012CN102733772A Christmas tree of tubing head for borehole operation without killing well
10/17/2012CN102733770A Wellhead wicker repair tool
10/16/2012US8287640 Stable foamed cement slurry compositions and methods for making and using same
10/16/2012US8286734 Low profile rotating control device
10/16/2012US8286717 Tools and methods for hanging and/or expanding liner strings
10/16/2012US8286711 Running tool that prevents seal test
10/16/2012US8286705 Apparatus and method for treating a subterranean formation using diversion
10/16/2012CA2645401C Tubular expansion method
10/16/2012CA2641296C Universal marine diverter converter
10/15/2012CA2772277A1 Cluster opening sleeves for wellbore
10/11/2012WO2012138556A2 Borehole metal member bonding system and method
10/11/2012WO2012138402A1 Low-melting elemental metal or fusible alloy encapsulated polymerization initiator for delayed initiation
10/11/2012WO2012138230A1 Device for operations in proximity of an underwater installation
10/11/2012WO2012136258A1 Temperature responsive packer and associated hydrocarbon production system
10/11/2012WO2012066290A3 Downhole method and apparatus for use in conditioning drilled bores
10/11/2012US20120255742 Borehole Metal Member Bonding System and Method
10/11/2012US20120255733 Hyper-fine cement
10/11/2012US20120255723 Drillable slip with non-continuous outer diameter
10/11/2012CA2828187A1 Drillable slip with non-continuous outer diameter
10/11/2012CA2827132A1 Borehole metal member bonding system and method
10/10/2012EP2508706A1 Ring member for swellable apparatus, assembly and method
10/10/2012EP2507469A1 An apparatus for sealing off a part of a wall in a section drilled into an earth formation, and a method for applying the apparatus
10/10/2012EP2507468A2 Assembly and method for subsea well drilling and intervention
10/10/2012CN202483539U Thermal recovery steam injection well pipe string compensation packing device
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